public void Returns_True_If_PixelColor_Changed()
{
var pixel = new Pixel(0);
pixel.AcceptChanges();
pixel.PixelColor = Color.Black;
pixel.IsChanged.Should().BeTrue();
}
public void Returns_False_If_PixelColor_Was_Set_To_Original_Color()
{
var pixel = new Pixel(0);
pixel.PixelColor = Color.Yellow;
pixel.AcceptChanges();
pixel.PixelColor = Color.Yellow;
pixel.IsChanged.Should().BeFalse();
}